[src/trunk]: src/lib/libc/sys vfork.2: recommend posix_spawn instead

[nia <nia%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/3bb2f3d59486
branches:  trunk
changeset: 379576:3bb2f3d59486
user:      nia <nia%NetBSD.org@localhost>
date:      Tue Jun 08 16:15:11 2021 +0000

description:
vfork.2: recommend posix_spawn instead

diffstat:

 lib/libc/sys/vfork.2 |  10 +++++++---
 1 files changed, 7 insertions(+), 3 deletions(-)

diffs (35 lines):

diff -r 3372476adc1e -r 3bb2f3d59486 lib/libc/sys/vfork.2
--- a/lib/libc/sys/vfork.2      Tue Jun 08 10:02:04 2021 +0000
+++ b/lib/libc/sys/vfork.2      Tue Jun 08 16:15:11 2021 +0000
@@ -1,4 +1,4 @@
-.\"    $NetBSD: vfork.2,v 1.28 2018/05/19 05:39:21 kamil Exp $
+.\"    $NetBSD: vfork.2,v 1.29 2021/06/08 16:15:11 nia Exp $
 .\"
 .\" Copyright (c) 1980, 1991, 1993
 .\"    The Regents of the University of California.  All rights reserved.
@@ -29,7 +29,7 @@
 .\"
 .\"     @(#)vfork.2    8.1 (Berkeley) 6/4/93
 .\"
-.Dd May 19, 2018
+.Dd June 8, 2021
 .Dt VFORK 2
 .Os
 .Sh NAME
@@ -105,7 +105,8 @@ Same as for
 .Xr execve 2 ,
 .Xr fork 2 ,
 .Xr sigaction 2 ,
-.Xr wait 2
+.Xr wait 2 ,
+.Xr posix_spawn 3
 .Sh HISTORY
 The
 .Fn vfork
@@ -137,3 +138,6 @@ or
 signals; rather, output or
 .Xr ioctl 2
 calls are allowed and input attempts result in an end-of-file indication.
+.Pp
+New applications should prefer
+.Xr posix_spawn 3 .